Those sound like positive indications.
Some people just do better over the phone than email, or prefer that human interaction.
What I learned from Google is some basics that may or may not be helpful but did convince me that I personally am not ready for a publicist.
Here's what I distilled from an article about finding the perfect publicist.
1. References. Ask if you can see examples of some of their previous, successful work. Also ask about talking to former clients.
2. Ask about background and experience. Kind of ties into number 1 there.
3. Ask where they operate (local, regional, national, global) and how many people they employ.
4. Choose someone you trust. Apparently having a good working relationship with your publicist tends to produce better results. We all probably work better with people we like.
5. Be patient. There is no overnight success.
6. Understand that publicists do not sell products, they sell stories. Give them a story to sell (how the average person can help save the world, say) and they'll get you publicity. It's the story people are buying as much as the product anyway, and as corny as it sounds, this is selling hope in book form--not wishy-washy, we should all live in rainbows and ride unicorns hope, but dig in and get things done hope..the kind of hope that motivates, activates, and something else-ates because threes are good for rhythm.
7. Once you find your unicorn, er publicist, communicate. A lot. If you're both on the same page, you can work better and spot any problems sooner.
The top ten signs you shouldn't hire a publicist are fun, but I'm pretty sure they don't apply here. Here's the link anyway... https://observer.com/2017/01/ten-signs-you-should-not-hire-publicist/
ETA: if I had anything permaculture-related or valuable to add to the deals, I'd be happy to help. Alas at present all I've got are Google skills, snark, and a fiction eBook that sells a copy occasionally.